EP 0789417 B1 20020403 - Dielectric resonator
Title (en)
Dielectric resonator
Title (de)
Dielektrischer Resonator
Title (fr)
Résonateur diélectrique
Publication
Application
Priority
JP 2139496 A 19960207
Abstract (en)
[origin: EP0789417A1] A dielectric resonator includes a cylindrical hole (4b) formed in the intersection of two resonator elements (2a,2b) forming a TM dual-mode dielectric resonator element (2). The hole (4b) extends in a direction across the thickness of the TM dual-mode dielectric resonator element (2). Furthermore, a quadrangular pyramid-shaped hole (4a) having a closed end is formed in each connecting part between each resonator element (2a,2b) and a cavity wall so that each hole (4a) extends from the outer surface of the cavity wall toward the inner portion of each resonator element (2), wherein the inner wall of each hole (4a) is covered with a conductor (3a) electrically connected to a cavity conductor (3). The shapes of the above holes (4a,4b) are determined so that the TM dual-mode dielectric resonator element (2) has the same resonance frequency for both TM 110 and TM 111 modes. The above arrangement makes it possible to provide a low-cost high-performance dielectric resonator having characteristics similar to those of a three-mode dielectric resonator, which can be produced in a small overall size. <IMAGE>
IPC 1-7
IPC 8 full level
H01P 1/20 (2006.01); H01P 1/208 (2006.01); H01P 7/10 (2006.01)
CPC (source: EP US)
H01P 7/10 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT SE
DOCDB simple family (publication)
EP 0789417 A1 19970813; EP 0789417 B1 20020403; DE 69711476 D1 20020508; DE 69711476 T2 20020718; JP 2998627 B2 20000111; JP H09214206 A 19970815; US 5796320 A 19980818
DOCDB simple family (application)
EP 97101992 A 19970207; DE 69711476 T 19970207; JP 2139496 A 19960207; US 79625497 A 19970206